OBJECT Few data are available on how closely stents appose the luminal vessel wall in stent-mediated coil embolization of intracranial aneurysms and on the effect of incomplete stent apposition on procedural thromboembolic complications. METHODS Postprocedural 3-T MR diffusion-weighted imaging and time-of-flight angiography were obtained in 58 patients… (More)
We report a 12-year-old girl who at presentation had diffuse myxopapillary ependymomatosis of uncertain primary site. The MR appearance and mechanism of metastases of the tumor are discussed.
BACKGROUND In patients with open neural tube defects, the incidence of scoliosis and requirement for spinal fusions are increased. Historically, there has been no standardized measurement of vertebral morphometry in these patients. However, anecdotally, patients with open neural tube defects have a more medially oriented lumbar pedicle trajectory than the… (More)
The purpose of this study was to analyze the CSF flow in patients with Chiari I to determine differences between patients with and without CAH. Thirty patients with Chiari I malformation underwent cine-PC CSF flow imaging in the sagittal plane. CSF flow pulsations were analyzed by placing regions of interest in the anterior cervical subarachnoid space.… (More)